“She was sat across the table fro Rob, but later moved next to him,” an eyewitness told Heat World. “She was laying on the charm and tossing her head back, laughing, touching his arm and twirling her hair.”

And it seems that Katy’s advances were not the least bit unwelcome. The pair “wound up having a great time,” revealed the source, adding that Rob finds Katy “super-hot.”